Got Questions? Get Answers.
Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

Thread Subject:
How to generate idmodel from acceleration data

Subject: How to generate idmodel from acceleration data

From: Krishna Kumar

Date: 21 Jan, 2011 09:37:04

Message: 1 of 1

Hi all,
       I have an acceleration data for which i need to find frf. i need to use 'arx' or any other function to make a parametric model( an 'idmodel') out of my data, which I will use in 'sim' function (along with input which i generated using 'idinput')to simulate output. I could find the frf using output and input . Plz clarify the syntax of arx function.
m = arx(data,orders).
m = arx(data,'na',na,'nb',nb,'nc',nc,'nk',nk)
my acceleration data has 19 outputs and 19 inputs(data is an iddata model). Plz tell what 'na' etc mean and what should be their values.
Is there any way other than arx to estimate the idmodel?
Thanks in advance.

Tags for this Thread

What are tags?

A tag is like a keyword or category label associated with each thread. Tags make it easier for you to find threads of interest.

Anyone can tag a thread. Tags are public and visible to everyone.

Contact us